Consolidated Statement Of Operations Consolidated Statement of Operations (Parenthetical) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Securitization Transactions [Line Items]
Management fee rebate	[1]	$ 423	$ 172	$ 950	$ 172
Interest income	[2]	35,300	21,145	95,333	65,819
Interest expense	[2]	15,678	8,166	40,624	21,794
Consolidated Entities [Member]
Securitization Transactions [Line Items]
Interest income		1,300	0	3,900	0
Interest expense		$ 700	$ 0	$ 2,400	$ 0

[1] See Note 9 for further details on management fee rebates.

[2] Includes interest income and interest expense of a consolidated securitization trust of $1.3 million and $0.7 million, respectively, for the three-month period ended September 30, 2018. Includes interest income and interest expense of a consolidated securitization trust of $3.9 million and $2.4 million, respectively, for the nine-month period ended September 30, 2018. See Note 6 for further details on the Company's consolidated securitization trust.